Precise Measurement of τ Mass

BES Collaboration

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 1995, Vol. 19> Issue(2) : 97-105

Precise Measurement of τ Mass

BES Collaboration

Institute of High Enerty Physics, Acadamia Scinica, Beijing 100039

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Abstract：
Pairs of τ lepton produced near the threshould have been studied in eμ,ee,eπ,μμ,μπ,ππ final states with the data taken by BES detector at BEPC collider in 1992.The obtained τ mass is MeV by fitting data with likelihood method.

References

[1]	BES合作组，高能物理与核物理，16（1992）865.[2]Measurement of the Mass of #964; lepton,BES collab,Phys.Rev.Lett.,69（1992）3021.[3]Review of Particle Properties,PDG.Phys.Rev.,D45（1993）.[4]Experimental Results on #964; physics,J.J.Gomez Cadenas,CERN-PPE/94-B,1994.

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[14]	RONG Gang , CA Ji-Mao , MAO Hu-Shun , WANG Tai-Jie , BAI Jing-Zhi , LI Wei-Guo . Application of dE/dx Method for e/π Identification to the Measurement of the Mass of τ Heavy Lepton by BES. Chinese Physics C, 1993, 17(10): 865-872.
[15]	DONG Fang-Xiao , DU Dong-Sheng , XUE Pei-You . COMMENT ON LIGHT-FERMION MASS HIERARCHY PROBLEM IN SU(9) GRAND UNIFIED MODELS. Chinese Physics C, 1983, 7(1): 20-27.
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BES Collaboration. Precise Measurement of τ Mass[J]. Chinese Physics C, 1995, 19(2): 97-105.

BES Collaboration. Precise Measurement of τ Mass[J]. Chinese Physics C, 1995, 19(2): 97-105. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Precise Measurement of τ Mass

BES Collaboration

Institute of High Enerty Physics, Acadamia Scinica, Beijing 100039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1995-02-05

Abstract: Pairs of τ lepton produced near the threshould have been studied in eμ,ee,eπ,μμ,μπ,ππ final states with the data taken by BES detector at BEPC collider in 1992.The obtained τ mass is MeV by fitting data with likelihood method.